Lavatory bowl



FIG. 1 is a perspective view of a lavatory bowl showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof; and,

FIG. 4 is a top plan view thereof.

The bottom plan view is plain and unornamented. 

The ornamental design for a lavatory bowl, as shown and described. 